Annual Average Humidity in Alaska

The average humidity year round is listed below for places in Alaska. The tables give daily averages along with highest and lowest relative humidity levels.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold.

All the numbers here are averages for the years 1961 to 1990.

Average Humidity

In this table, the Daily number is the average of humidity readings taken every three hours throughout the day. Morning percentages are for 6 am and Afternoon measures are for 3 pm local standard time.

Southeast Alaska

Daily

Place

Morning

Afternoon

78

Annette Island

84

72

82

Juneau

87

74

85

Yakutat

90

77

South - Central Alaska

Daily

Place

Morning

Afternoon

71

Anchorage

77

64

65

Fairbanks

73

56

71

Gulkana

78

57

78

Homer

84

71

74

Talkeetna

83

63

78

Valdez

83

70

Southwest Alaska

Daily

Place

Morning

Afternoon

79

Bethel

85

72

85

Cold Bay

88

80

76

King Salmon

83

67

77

Kodiak

81

71

70

McGrath

79

60

87

St Paul Island

88

84

Far North Alaska

Daily

Place

Morning

Afternoon

81

Barrow

83

80

69

Bettles

76

62

77

Kotzebue

79

74

74

Nome

77

71

Highest and Lowest Humidity

Below are averages over the year for maximum and minimum relative humidity percentages in Alaska. The hours when the highest and lowest humidity readings usually occur are given in local standard time.